A letter to Dr. Cheyne : containing an account of the motion of water through orifices and pipes; and an answer to Dr. Morgan's remarks on Dr. Robinson's Treatise of the animal oeconomy.

  • Bryan Robinson
Date:
1735
Catalogue details

Licence: Public Domain Mark

Credit: A letter to Dr. Cheyne : containing an account of the motion of water through orifices and pipes; and an answer to Dr. Morgan's remarks on Dr. Robinson's Treatise of the animal oeconomy. Source: Wellcome Collection.

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    [ i.) ] may, by knowing the Velocity ac¬ quired by a heavy Body in falling through fuch a Space, find the Ve1- locity with which the Water flows out through the Hole. For, ac¬ cording to Sir Ifaac Newton, a Body falling in vacuo near the Surface of the Earth will defcribe 193^ Inches or 1Feet in one Second Minute of Time, and will have acquired a Velocity in the Time of the Fall, which being continued uniform would make it defcribe twice that Space, that is 386^ Inches or 3 i~ Feet in one Second: But uniform Velocities are as the Spaces delcri- bed by them in one Second, and the Velocities acquired in falling in vacuo through the Spaces id- and A1—a7 are t“e htbduplicate Ratio of thofe Spaces: And therefore 3 .Vi 6~ :: V. 5 whence V = 8.02773